skip the broker check-in part of the context manager

[omkarkhatavkar]

Description

This PR adds a new optional parameter to the Broker class, skip_checkin, which can be set to True when instantiating the class to skip the check-in step when exiting the context.

If skip_checkin is not set or is set to False, the __exit__ method will proceed with the normal check-in process, which includes attempting to perform a teardown on each host in the _hosts list and calling the checkin method to perform the final check-in step.

This change is useful when the Broker instance is being used in a context where a check-in is not necessary or desired, such as when performing read-only operations on remote servers.

[JacobCallahan]

I'm not sure this should be specified on the class level, since it may be too broad. However, we can discuss intended uses and implementation in chat. This may ultimately be the least clumsy way of adding the skip functionality.

[jyejare]

ACK with minor comment !

[JacobCallahan]

One key part of this is allowing the behavior only when in the context manager. This implementation would also disallow checkins outside of the context manager.

You'll need to add an argument to checkin like in_context=True and checking for that before the list comprehension filtering no_checkin hosts

if in_context:
    do your comprehension filter

[omkarkhatavkar]

One key part of this is allowing the behavior only when in the context manager. This implementation would also disallow checkins outside of the context manager.

You'll need to add an argument to checkin like in_context=True and checking for that before the list comprehension filtering no_checkin hosts

if in_context:
    do your comprehension filter

Okay, understood. I've added an additional layer of security to the check-in process.